Nero CD Speed v4.7.7.16 - BD-ROM:
To test the BP40NS20's BD-ROM reading performance, I used the Blu-ray Disc version of The Fifth Element. This single layer disc is about 23GB in size.
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Transfer Speed | Access Times | CPU Usage | |||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | 8x | |
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LG BP40NS20 |
4.53x | 2.53x | 6.04x | 112ms | 254ms | 419ms | 0% | 1% | 2% | 5% |
The BP40NS20 performed relatively well when reading single layer BD-ROM discs. In our tests, it started reading at 2.54x and reached a maximum transfer speed of 6.04x.
LG's portable Blu-ray writer had no problems playing back The Fifth Element and The Simpsons Movie using the bundled version of PowerDVD. Just keep in mind that if your monitor is connected to your video card using DVI or HDMI, both need to be HDCP compliant to play AACS protected titles. If not, you can still play them by switching the connection to VGA or using software like Slysoft's AnyDVD HD.
Nero CD Speed v4.7.7.16 - BD-R and BD-RE:
Next we'll look at the drive's BD-R and BD-RE reading performance. For this I created a few data discs using single layer BD-R and BD-RE media from Memorex and TDK and then ran our BD read tests with CD Speed.
TDK BD-R
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Transfer Speed | Access Times | CPU Usage | |||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | 8x | |
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LG BP40NS20 |
4.55x | 2.60x | 6.02x | 145ms | 285ms | 446ms | 0% | 1% | 4% | 8% |
Memorex BD-RE
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Transfer Speed | Access Times | CPU Usage | |||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | 8x | |
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LG BP40NS20 |
4.55x | 2.35x | 6.03x | 156ms | 183ms | 427ms | 0% | 2% | 5% | 9% |
TDK BD-R DL
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Transfer Speed | Access Times | CPU Usage | |||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | 8x | |
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LG BP40NS20 |
4.55x | 2.61x | 6.01x | 128ms | 270ms | 432ms | 0% | 1% | 4% | 8% |
LG's new drive had no problems reading BD-R, BD-RE and BD-R DL media. In all three cases, the drive reached a maximum transfer speed of about 6x.
